SDR DHL9770124C

Service difficulty report · Floorbeam · Boeing 72730C

Difficulty date: May 1, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N701DH
Make and model: Boeing 72730C
Aircraft serial: 19011
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Bs 312
Stage of operation: IN
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING C-CHECK, UPPER FLANGE OF FLOORBEAM HAS CORROSION, TOP AND BOTTOM AT BS 312 LBL TO 5. CUT OUT DAMAGED AREA AT TOP OF FLOORBEAM, BS 312 LBL 6 TO RBL 6 APPROX 11.75. INSTALLED REPAIR AT UPPER CHORD PER SRM 53-10-8 FIG 7. REPAIR SIZE 22 IN LENGTH, N/R 3611.

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